Sanhua SD2 Series, Руководство пользователя

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Sanhua SD2 series drive
User Manual v3.5 –Sep-27.2022 34
6.3 All major fault summary and possible cause checklist
# Fault Name Possible Causes
1 Lost Communication
1. AOC hardware damage;
2. Poor connected MOC communication cable or communication
cable damage;
3. The MOC circuit is damaged;
2 EEPROM Data Abnormal
1. The data in the EEPROM is damaged;
2. The MOC circuit is damaged;
3 AD-Offset Abnormal 1. The MOC circuit is damaged;
4(*) AC Lost-Phase(HW)
1. The power supply is lost phase, or the power supply voltage is
unbalance, or the power supply voltage jump is too drastic;
2. The MOC circuit is damaged
5(*) AC Lost-Phase/Unbalance(SW)
1. The power supply is lost phase, or the power supply voltage is
unbalance, or the power supply voltage jump is too drastic;
2. The input reactor is not connected
6 AC Over-Voltage
1. The power supply voltage is too high, or the power supply
voltage jump is too drastic;
2. The MOC circuit is damaged
7 AC Under -Voltage
1. The power supply voltage is too low, or the power supply
voltage jump is too drastic;
2. The MOC circuit is damaged
8 Charge Circuit Fault
1. The power supply voltage is too low;
2. The MOC circuit is damaged;
9 DC Over-Voltage(HW)
1. The power supply voltage is too high, or the power supply
voltage jump is too drastic;
2. The MOC circuit is damaged
10 DC Over-Voltage(SW)
1. The power supply voltage is too high, or the power supply
voltage jump is too drastic;
2. The MOC circuit is damaged
11 DC Under-Voltage
1. The power supply voltage is too low, or the power supply
voltage jump is too drastic;
2. The MOC circuit is damaged
12 HPS Protection
1. The high pressure exceed protection pressure;
2. High-pressure switch damaged;
3. Poor connected HPS cable or cable damaged;
4. The MOC circuit is damaged;
13 DLT Protection
1. External DLT signal trigger;
2. External DLT signal abnormal;
3. The AOC hardware damage;
4. Poor connected MOC communication cable or communication
cable damage;
5. The MOC circuit is damaged;
14 IPM HW-OC Protection
1. The refrigerant pressure is too high;
2. Poor connected compressor cable;
3. The compressor is damaged (Stalling, wear, motor
demagnetization, winding open/short circuit etc.);
4. The MOC circuit is damaged;
15(**) PFC HW-OC Protection
1. PFC inductance short circuit;
2. The MOC circuit is damaged;
16 Motor Over-Current
1. The refrigerant pressure is too high;
2. Poor connected compressor cable;
3. The compressor is damaged (Stalling, wear, motor
demagnetization, winding open/short circuit etc.);